Search for on reputable CAD forums (like CadViet or CADO). Ensure the pack includes vn-vni.shx , vn-vni2.shx , and the standard VNI shape files. Avoid "font aggregator" sites that only offer random .ttf files—you specifically need the .shx version for CAD.
This guide will provide you with the necessary information to download, install, and fix errors related to the font. tai font vn-vni.shx
Unlike modern fonts that are filled-in shapes, an is a "shape" font. It is made of individual pen strokes—perfect for the plotters and drafting machines of the 1990s. This particular file, the VN-VNI variant, was designed specifically to handle the complex accents and diacritics of the Vietnamese alphabet within the rigid environment of AutoCAD. Search for on reputable CAD forums (like CadViet or CADO)